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Flexible Couplings TB Wood's ALTRA MOTION Flexible Couplings TB Wood's TB Wood’s is an industry leading designer and manufacturer of mechanical power transmission equipment for industrial control. Our mechanical product lines include: clutch and brake, synchronous and belted variable speed drives; grid, disc, jaw, gear coupling and elastomeric coupling products; sheaves and bushings. Registered trademarks include Sure-Flex Plus®, Dura-Flex®, G-Flex®, and Sure-Grip®. TB Wood’s was founded in 1857 and began as a foundry producing wood burning stoves. Our company’s tradition of product innovation started early. TB Wood’s entered the power transmission industry at the turn of the century with the introduction of flat belted drives and line shafting. VISIT US ON THE WEB AT TBWOODS.COM AltraTable Motion Of Contents Altra is a leading global designer and producer of a wide range of electromechanical power transmission and motion control components and systems.SECTION Providing the essential control of equipment speed, torque, positioning, and other functions, Altra products can be usedPAGES in nearly any machine,F1 processCouplings or application – Sure‑Flex involving Plus motion.® From engine braking systemsSelection for heavy Data duty . .trucks . .to . precision . .motors . embedded1-8 in medical robots to brakes used on offshore wind turbines, Altra has been serving customersDimensions around . .the . .world . .for . decades. 9-17 Installation . 18 F2 Couplings – Dura‑Flex® Selection (English) . 1-6 Altra’s leading brands include Ameridrives, Bauer Gear Motor, Bibby Turboflex,Selection Boston (Metric) Gear, Delevan . ., .Delroyd . Worm . Gear, Formsprag7-11 Clutch, Guardian Couplings, Huco, Jacobs Vehicle Systems, Kilian, Kollmorgen, Lamiflex Couplings, Marland Clutch, Matrix, Nuttall F3 Couplings – L‑Jaw Selection . 1-6 Gear, Portescap, Stieber, Stromag, Svendborg Brakes, TB Wood’s, Thomson, Twiflex, Warner Electric and Wichita Clutch. F4 Couplings – G‑Flex Selection . 1-10 F5 Couplings – Form‑Flex® & Torsiflex‑i Product Features and Options . 3 VISIT US ON THE WEB AT ALTRAMOTION.COM Disc Coupling Advantages . 3 Typical Applications . 3 Coupling Application Types . 4 Coupling Selection Process . 5 Coupling Selection Guide . 6 Standard Bore Tolerances . 7 Industry Standard Reference . 8 Dynamic Balance Recommendations . 8 Disc Coupling Misalignment Discussion . 8 Product Differentiation . 9 Spacer Couplings . 11-18 Floating Shaft Couplings . 19-24 Closed Coupled Couplings . 25-28 Single Flex Couplings . 29-32 Heavy Duty Spacer Couplings . 33-37 Coupling Repair Parts and Kits . 38-39 Hub Options . 40-41 Design Options . 42-43 Bolt Thread Size . 44 Bolt/Nut Tightening Torque . 44 Application Data Sheet . 45-46 F7 Rigid Couplings AVS Selection . 2-5 Sure-Flex Plus® Elastomeric Couplings F1 • 30% Higher Rating • Quick, Easy Installation • Clean, Quiet Performance • No Lubrication, No Maintenance P-1686-TBW 12/19..... TB Wood’s 888-829-6637 F1-1 Table of Contents Sure-Flex Plus® Table of Contents Selection Guide ....................................................................................3-7 Components ...........................................................................................3 Sleeve Selection ......................................................................................4 Sleeve Dimensions ..................................................................................5 Load/Service Factor ................................................................................6 Coupling Ratings .....................................................................................7 Type J BTS Couplings .............................................................................9 Type S BTS Couplings ......................................................................10-11 Type B QD Bushed Couplings ...............................................................11 Type SC BTS Spacer Couplings ...................................................... 12-15 Type C Clamp Hub Couplings ................................................................16 Installation Instructions ..........................................................................17 Sure-Flex Plus couplings are a TB Wood’s original! Sure-Flex Plus couplings utilize EPDM, Neoprene, and Hytrel™ flexible elastomer sleeves to transmit torque and accommodate shaft misalignment. Sure-Flex Plus couplings have exceptional torsional flexibility, with the 4-way flexing action absorbing virtually all types of shock, vibration, misalignment and end float. Sure-Flex Plus couplings are an excellent choice when low cost, high flexibility, low vibration and easy installation are important. Easy, Quick Installation New! Sure-Flex Plus can be installed quickly and easily, thanks to its simple design with no bolts, gaskets, covers or seals. For over 50 years, TB Wood’s has led the coupling industry Alignment can be checked on the precision-machined with the original TB Wood’s Sure-Flex design. And we haven’t flanges using only a straightedge and calipers. No special stopped innovating: this industry favorite just got even better. tools are needed for installation, alignment or removal. Our new Sure-Flex Plus EPDM and Neoprene sleeves are best-in-class for coupling performance and value. Here’s why: High Torque Rating • 30% Increased Torque Rating Sure-Flex Plus sleeves provide longer service life in demanding applications, reducing required maintenance and associated replacement cost. Longer Life • Sure-Flex Plus Lasts Over 3X Longer than the Competition Extensive testing shows our sleeves outlast the imitators. More uptime means less costly downtime. Better Value • Save Money Using a Smaller Coupling Over 50% of common applications can now use a smaller Features coupling, lowering the cost of both coupling purchase and • Up to 72,480 in.lbs.; 8.20 kNm sleeve replacement. • Quick and easy installation • Spacer, bushed hub, and clamping hub designs in stock Interchangeable • Flexible design accommodates misalignment and protects • Retrofits to Existing Flanges equipment No need to replace the full coupling – the Sure-Flex Plus • 7° to 21° torsional wind up sleeve design is 100% compatible with the current industry • Needs no lubrication, no maintenance standard created by TB Wood's over 50 years ago. F1-2 TB Wood’s 888-829-6637 .....P-1686-TBW 12/19 Sure-Flex Plus® Sure-Flex Plus 4-Way flexing action absorbs all types of shock, vibration and misalignment Torsional Sure-Flex Plus coupling sleeves have an exceptional ability to absorb torsional shock and dampen torsional vibrations. The EPDM and Neoprene sleeves wind up approxi mately 21° No Lubrication, Trouble-Free Operation torsionally at their rated torque. Hytrel sleeves will wind up about 7°. The teeth of the sleeve lock into the teeth of the flanges without clamps or screws, tightening under torque to provide smooth transmission of power. Angular Couplings are not affected by abrasives, dirt or The unique design of the Sure-Flex Plus moisture, eliminating the need for lubrication or coupling’s teeth allows for the absorption of angular misalignment without wear. maintenance and providing clean, dependable, quiet Refer to page F1-18 for misalignment performance. limits. Angular alignment can be achieved using only a scale and calipers. Applications Parallel Sure-Flex Plus couplings can be found hard at work Parallel misalignment is absorbed in many industries. These couplings are ideal for a without wear or appreciable energy loss. The lateral flexibility of the coupling wide variety of applications including: sleeve minimizes radial bearing loads normally asso ciated with parallel • Pumps misalignment. This feature also allows • Fans/Blowers for easier installation by the use of components bored for slip fits without • Compressors fretting corrosion occurring at the • Mixers shaft. Refer to page F1-18 for parallel misalignment limits. Only a straight-edge • Electric Motors and feeler gage are required for parallel • Conveyors alignment. Axial Sure-Flex Plus couplings may be used in applications with limited axial shaft movements. The axial compressibility of the EPDM and Neoprene sleeves allows for shaft end-float without the absolute transfer of thrust loads. Sure-Flex Plus SELECTION GUIDE Use the Coupling Selector Program on www.TBWoods.com/Select Or follow these steps: Sure-Flex Plus couplings are selected as component parts. 1. Determine SLEEVE material and type. Refer to pages F1—4 & 5 2. Determine coupling SIZE. Refer to pages F1—6, 7, & 8 PROD. NUMBER PROD. DESCRIPTION 3. Determine FLANGES to be used. Refer to pages F1—9 thru 16 6S138 6Sx1-3/8 Specify coupling components. 6S1 6Sx1 • Example #1 - Close coupled 6JS 6JES Size 6, Type S flange w 1-3/8 bore Size 6, Type S flange w 1” bore Size 6, Split EPDM sleeve 9SC5011 9SC50-11 • Example #2 - 5” Between shaft spacer 9SC50 9SC50 Size 9, Type SC flange for #11 hub 11SCH238 11SCH x 2-3/8 Size 9, Type SC flange for #9 hub Size 11 Hub w 2-3/8 bore 9SCHS118 9SCHS x 1-1/8 Size 9 Short hub w 1-1/8 bore 9H 9H Size 9 Solid Hytrel sleeve P-1686-TBW 12/19..... TB Wood’s 888-829-6637 F1-3 Sure-Flex Plus® Sleeve Selection Sure-Flex Plus Sleeves are available in three materials and various shape configurations. New! Sure-Flex Plus EPDM and Neoprene sleeves have a 30% higher torque capacity. EPDM Neoprene Hytrel CONSTRUCTIONS AVAILABLE 1 pc, unsplit JE JN H 1 pc, split JES JNS - 2 pc, E/N w/ring E N HS TYPICAL USE General Oil Resist General Purpose Non-flame Purpose REL. RATING 1X 1X 3X WIND-UP
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